Washington Post | What's so important about the oil meeting in Doha Washington Post This story has been updated. The fundamental cause of turmoil in oil markets since late 2014 has been too much of the stuff. With the Organization of the Petroleum Exporting Countries (OPEC) refusing to cut output, with more and more oil coming from ... Saudi-Iran tensions hang over oil freeze deal Saudi Insistence on Iranian Input Casts Doubt on Oil Deal Oil freeze deal in doubt as Saudi-Iran tensions spike |